A jellyfish floats through its basin at Qingdao Aquarium in Qingdao, east China`s Shandong Province, May 15, 2011. The Aquarium presents four different species of jellyfish as of now. (Xinhua/Niu Shupei)

Jellyfish float through their basin at Qingdao Aquarium in Qingdao, east China`s Shandong Province, May 15, 2011. The Aquarium presents four different species of jellyfish as of now. (Xinhua/Niu Shupei)

Jellyfish float through their basin at Qingdao Aquarium in Qingdao, east China`s Shandong Province, May 15, 2011. The Aquarium presents four different species of jellyfish as of now. (Xinhua/Niu Shupei)

A jellyfish floats through its basin at Qingdao Aquarium in Qingdao, east China`s Shandong Province, May 15, 2011. The Aquarium presents four different species of jellyfish as of now. (Xinhua/Niu Shupei)

A jellyfish floats through its basin at Qingdao Aquarium in Qingdao, east China`s Shandong Province, May 15, 2011. The Aquarium presents four different species of jellyfish as of now. (Xinhua/Niu Shupei)